Use APKPure App
Get Bigger Insta Profile (insta profile downloader) old version APK for Android
The easiest and most convenient way to see big profile photos from instagram.
See profile pictures from Instagram in original/bigger/full size.
All you need to do is to enter any instagram username and tap “Show Photo” button. And wait a few seconds, let app does its magic.
Hidden or public account, doesn’t matter. You can see any profile picture in bigger size using this app.